Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 370 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.64 × 63 =
2. 2.32 × 33 =
3. 3.201 × 209 =
4. 4.29 × 26 =
5. 5.305 × 304 =
6. 6.295 × 299 =
7. 7.73 × 74 =
8. 8.508 × 502 =
9. 9.27 × 29 =
10. 10.66 × 67 =
11. 11.59 × 59 =
12. 12.392 × 397 =
13. 13.56 × 57 =
14. 14.86 × 88 =
15. 15.595 × 592 =
16. 16.298 × 298 =
17. 17.59 × 59 =
18. 18.406 × 408 =
19. 19.305 × 303 =
20. 20.303 × 302 =
21. 21.598 × 592 =
22. 22.94 × 93 =
23. 23.24 × 21 =
24. 24.17 × 18 =
25. 25.299 × 297 =
26. 26.57 × 57 =
27. 27.78 × 78 =
28. 28.23 × 23 =
29. 29.596 × 591 =
30. 30.61 × 64 =
31. 31.81 × 84 =
32. 32.78 × 78 =
33. 33.84 × 83 =
34. 34.396 × 398 =
35. 35.208 × 205 =
36. 36.492 × 495 =
37. 37.26 × 28 =
38. 38.74 × 72 =
39. 39.405 × 404 =
40. 40.29 × 29 =

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